When to plant Rue in Scott County, MN
Scott County sits in cold Zone 4b. Plant Rue May 1–May 15 for the single annual harvest; the October 9 first frost closes the window.
When to Plant Rue in Scott County, MN
Top priorities for Scott County, Minnesota gardeners in July
Each item below is timed to Scott County, Minnesota's frost dates and soil temperatures. Skip nothing, stress about nothing.
-
Bring in the rue
Check every 1–2 days. Many of these get tough or go to seed if you wait too long.
August will be here before you know it — start on
- First harvests: rue
Rue is a bitter, aromatic perennial herb with bluish-green foliage used historically in medicine and as a pest deterrent. Handle with care as its sap can cause skin irritation.
Scott County, Minnesota is in USDA Zone 4b. The average last spring frost is April 24 and the first fall frost is October 9, giving you a growing season of approximately 168 days.
At an elevation of 1,105 feet, Scott County receives approximately 39.8 inches of rainfall annually with predominantly silt loam soil. Summer highs average 80°F, so choose short-season varieties of Rue to ensure they mature before fall.
Scott County Soil Profile
Soil Type
Silt Loam
Soil pH
5.9-7
Drainage
Well Drained
Rue Planting Risk Windows
Percentages indicate frost risk at transplant. The 70% safe window means there is a 30% chance of frost after transplant — suitable for cold-hardy crops or gardeners with frost protection. The 90% safe window is best for tender plants.
Soil Compatibility in Scott County
How your county's soil matches Rue's growing requirements.
Soil pH
Your soil pH (5.9–7.0) overlaps with Rue's range (6.0–7.5), though not a perfect match.
Soil Texture
The silt loam soil in Scott County is excellent for Rue — good drainage, moisture retention, and nutrient holding capacity.
Organic Matter
Organic matter is excellent (4.5%) — Rue will thrive.
How to Plant Rue
Succession Planting Rue
Sow every 8 weeks. Last sowing by Jul 11 to harvest before frost.
Rue Water Budget
Monthly Watering Guide for Rue
Rue needs approximately 0.5 inches of water per week (2.2" per month). Here's how your county's rainfall compares month by month.
| Month | Rue Needs | Rainfall | You Supplement | Action |
|---|---|---|---|---|
| Jan | — | 1.6" | 0" | ❄️ Dormant |
| Feb | — | 1.6" | 0" | ❄️ Dormant |
| Mar | — | 2.5" | 0" | ❄️ Dormant |
| Apr | 2.2" | 4.5" | 0" | ✅ Rainfall sufficient |
| May | 2.2" | 4.7" | 0" | ✅ Rainfall sufficient |
| Jun | 2.2" | 4.5" | 0" | ✅ Rainfall sufficient |
| Jul | 2.2" | 5" | 0" | ✅ Rainfall sufficient |
| Aug | 2.2" | 4" | 0" | ✅ Rainfall sufficient |
| Sep | 2.2" | 3.7" | 0" | ✅ Rainfall sufficient |
| Oct | 2.2" | 3.1" | 0" | ✅ Rainfall sufficient |
| Nov | — | 2.5" | 0" | ❄️ Dormant |
| Dec | — | 2.4" | 0" | ❄️ Dormant |
Water needs are for active growing months only (Apr–Oct in Scott County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.
Rue Heat Requirements (GDD)
What are Growing Degree Days (GDD)?
Growing Degree Days measure the total warmth your plants receive during the growing season. Think of it as a "heat bank" — every day above 50°F deposits warmth that helps your plants grow.
Each plant needs a certain amount of accumulated heat to mature. If your county provides more GDD than the plant needs, it's a great fit. If it's close, you may want to choose faster-maturing varieties or start seeds indoors to get a head start.
Rue Planting Timeline — Scott County, MN
Rue Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Transplant Outdoors | May 1 | May 1 – May 15 |
| Harvest | July 10 | Jul 10 – Sep 11 |
Plant 0.5" deep · 8" apart · Rows 12" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | — |
| April | — |
| May | Transplant Outdoors |
| June | — |
| July | Harvest |
| August | Harvest |
| September | Harvest |
| October | — |
| November | — |
| December | — |
Growing Conditions
☀️ Sun
Full Sun (6-8+ hours)
💧 Water
0.5"/week · Natural rainfall sufficient
📅 Days to Maturity
70–90 days
🧪 Soil pH
Needs 6–7.5 · Your soil: acceptable
🗺️ USDA Zone
Zone 4b
📆 Growing Season
168 days in Scott County
Growing Tips for Rue in Scott County
Direct sow Rue outdoors after April 24 in Scott County when soil has warmed and frost danger has passed.
General growing tips
Start seeds indoors or direct sow. Plant in well-drained soil. Wear gloves when handling as sap can cause phytophotodermatitis. Prune in early spring.
Companion Planting
Good Companions
Avoid Planting Near
Check more plant combinations with our Companion Planting Checker →
Rue in Other Locations
Frequently Asked Questions
When should I plant Rue in Scott County, MN?
Scott County is in Zone 4b with an average last frost of April 24. Plan your Rue planting based on this frost date — see the calendar above for exact timing.
What planting zone is Scott County, MN?
Scott County, Minnesota is in USDA Hardiness Zone 4b. The average last spring frost is April 24 and first fall frost is October 9.
When should I plant Rue in Scott County, MN?
In Scott County, MN, plant Rue after the last frost (around April 24) and before the first frost (around October 9). Best results when soil holds above 50°F.
What growing zone is Scott County, MN for Rue?
Scott County sits in USDA Zone 4b. Rue grows reliably in zones 4a through 9b, so it's a good fit here.
Can Rue grow in Scott County's climate?
Yes — Rue grows well in Scott County's temperate climate. Scott County averages a 168-day frost-free season, with last frost around April 24 and first frost around October 9.
Your Scott County Garden Planner — Free
A 22-page printable planner built for Scott County (Zone 4b). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.